(814) 746-6338 Locally Owned & Operated

The Window Source Difference

More Than Just Windows, Doors, and Siding

The Window Source difference goes beyond premium products and professional installation. We’re committed to delivering an exceptional experience from start to finish, backed by the resources of a national brand and the personal touch of local ownership. When you choose The Window Source, you’re choosing a partner invested in your home’s long-term performance and your complete satisfaction.

Our Service Area

Our Erie & Northwest Pennsylvania Service Area

The Window Source of Northwest PA proudly installs replacement windows, entry and patio doors, and siding for homeowners across Erie and Northwest Pennsylvania. As a locally owned father-son team, we know these communities firsthand, from the neighborhoods of Erie and Millcreek to Meadville, Franklin, and the Shenango Valley. Wherever you are in our territory, you get the same factory-direct pricing, professional installation, and lifetime warranty.

Explore your city below to learn how we serve your neighborhood, or call us at (814) 746-6338 for a free, no-obligation estimate. Don’t see your town listed? Give us a call anyway, because chances are good we serve your area too.

Free in-home estimate

Get your free estimate in under an hour

We measure your openings, walk you through your options, and give you a clear written price. No pressure, no obligation.

  • Free, no-obligation estimate
  • Factory-direct pricing, guaranteed in writing
  • Limited lifetime warranty on every product
  • Locally owned by the Howell family, we reply within 24 hours

Request your free estimate

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